JMTR-1001 Multi-channel Intelligent Temperature Transmitter - Product

Input type: 2/4-wire PT100 or tungsten-rhenium/B/S/N/K/J/T/E thermocouple

Number of input channels: 4 thermocouples, 2 PT100

Output mode: RS485

Data update rate: 0.5 seconds - thermocouple, 2/4-wire PT1000.9 seconds - 3-wire PT100

Thermocouple cold end compensation accuracy (AT25℃): (maximum) ±0.1℃

Operating environment: -30~60℃ 0~95% relative humidity

Special function: Can be matched with sensors to achieve ultra-high precision measurement.

Electrical isolation: Input-output-power supply isolation voltage 1000VDC

Power supply: 8~36VDC

Accuracy (AT25℃ maximum)

Enter model number	Range (℃)	A/D conversion accuracy	Impact of environment change of 1 ℃ (temperature drift)
PT100	-200~500	± 0.05 ℃	0.003 ℃
B-Type thermocouple	300~1820	± 1.40 ℃	0.050 ℃
S-type thermocouple	0 ~ 1768	± 0.65 ℃	0.040 ℃
N-type thermocouple	-200~1300	± 0.35 ℃	0.035 ℃
K-type thermocouple	-180~1372	± 0.25 ℃	0.034 ℃
J-type thermocouple	-180~760	± 0.20 ℃	0.011 ℃
T-Type thermocouple	-200~400	± 0.20 ℃	0.015 ℃
E-type thermocouple	-50 ~ 1000	± 0.17 ℃	0.009 ℃

Note 1: Total digital accuracy of thermocouple measurement: analog/digital conversion accuracy +0.1 ℃ (cold end compensation accuracy)

Overall accuracy after using sensor matching function (transmitter + sensor)

Enter model number	Range (℃)	A/D conversion accuracy (℃)
PT100	-50 ~ 200	± 0.05
S-type thermocouple	0 ~ 650	± 0.70
S-type thermocouple	650 ~ 1100	± 1.50
N-type thermocouple	0 ~ 650	± 0.40
N-type thermocouple	650 ~ 1100	± 1.90
T-Type thermocouple	-200 ~ -70	± 0.40
T-Type thermocouple	-70 ~ 400	± 0.20

Note 1: The sensors listed in the table are the most commonly used, stable and representative sensors in each temperature range. For details of accuracy in a wider temperature range, please consult the manufacturer.

Note 2: The thermocouple matching function is a patented technology and must be completed before leaving the factory.

Note 3: The accuracy of thermocouples in the table includes the accuracy of cold junction compensation and does not need to be superimposed separately.